Cord-tire-building machine



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lIMF' 65 ff? fm 112 C f yw wie www@ l Patented Aug, 12, 1924io me stares Parar Y., ASSIGNOB T0 TEX ENGINEERING COR- PORATION, OF NEW YORK, N. Y.

CORD-TBQEl-BUILDING IlJAQI-IINE.

Application fue@ .May 2r,

To all @from t may] concern: i 1

Be it known that l, KN'UT O. YB. TEX- TOmUS, a citizen et the United States, andv resident of the borough oi Manhattan, city, county, and State of New York, have invented certainV new and use-ful Improvements in Cord-Tire-Building Machines, of which the 'following is a speciication.

This invention relates to cord tire huilding machines of that general character disclosed in Patent- No. 1,359,632, granted to me on November 23, 1920.` 1nV the machine described in thispatent there is provided` aV plurality et synchronously operating mechanisms `for applying a layer of cords in one operation throughout the circumferential extent of a tire forming core. Generically considered, it is the primary object and purpose of my present invention to provide a machine having the same ultimate end in view but which is far simpler in its construction, therefore less expensive to produce and not as likely to get o-ut of order and require` more or lessi frequent repair as in the. ease of the patented machine.

It is one ot the important objects of the present improvements to provide an improved construction ot the? segmental cord receiving and applying means whereby the continuous circumferential layer of cords is applied to the tire 'forming core. ln conjunction there-with l have also devised improved means tor actuating the cord end clamping heads so as to securely clamp and hold the ends of the cords: upon seating Yflanges provided en the core.

1t likewise a further object of this invention to provide clamping rings of im-A proved 'f'orm for engagement with the ends ott the successively applied cord ilayers, whereby theclamping` rings may be securely held in superposed relation to each other.

rlihe invention also cemprehends the provision et means for removing thel forming core and the clamping means for the cord layers' from the machine and transferring the same to other machines .for the applica tion of additional cord layers.

With the above and other objects .in view, the invention consists in the improved cord tire building machine, and in the form, con struction and relative arrangement of the several cooperative parts, as will be hereinafter more: fully described, illustrated in 1921. Serial. No. 473,087.

the accompanying drawings andV subsequently incorporated in the subi` oined claims..

ln the drawings wherein l have sho-wn one desirable and satisfactory embodiment of the invention and in which similar' reference characters designate corresponding part-s throughout the several views:

Figure l is a top plan view illust-rating several of the ident-ical sections et the cord applying mechanism and their arrangement with relation te the tire forming core,

Figure 2 is a sectional' view taken on thelline 2 2 otFigure l, and in addition showing the mechanism for removing the core fromV the supporting table;

Fig. 2a is an enlarged detail sect-ion of the clamping mechanism;

Figure B is an enlarged vertical section through a portion of the machine showing the cord holding and applying member in position to receive the series of cords which constitute one section et the complete cord layer;

lligiire lis a vie-w similar to Figure 3, showing the cord applying member in its projected position and embracing the tire forming core;

Figure is a top plan view ofthe upper head and the core, illustrating the annular carrier for the cord end clamping ring` latched to the head;

Figure 6 is a fragmentary plan view showino` the ring carrier released from the. clamping head;

Fi.0'i1re 7 isa vertical section talcn ou the line 7-7 oi Figure 9, showing` the oper ating gearing and eccentrics for the veitically movable clamping` heads;

Figure 8 is a similar view showing` the rela-tive' positions et the parts with the heads in clamp-ing engagement with relation to the tire .torming` core;

Figure 9 is a section taken on the line 9-9 oit Figure 5;

yFigure l0 is a vdiagramniatie view illus trating the adjustment et the operating eceentrics lfor the heads;

Figure ll. is a plan view iilustrating the quadripartite construction. of the cord helding and applying means, and showing the several segments thereof in the relative positions which they assume upon the tire forming core;

Figure 12 is a detail elevationshowing the il cord holding means carried y Y, cord applying members;

f Figure 14; is174 fir-detail plan view-ofthe Ycore supporting table'with the bearingasf- Figure V13 is 'an' enlarged detail section taken on the line 13-13 of Figure 12 ;Y

Vsenibly for the operating eccentrics for the clamping heads; 'i'

Figure 15 is an enlarged transverse Sec- Y "tional view through one -'side of. thecore,

y the: ends thereof secured upon the. core by eral falce ofthe ring;

theclampiiig rings;

YFigure ltiisV a detailed` plan" view' of one mechanisms arranged in identically the saine `of" thev clamping.: rings;VV

VFigure `17V "is an" enlarged fragmentary plan View 'illustrating the manner of mfo'unt- .Figurefld'is a section'taken on 'thejline 18%18/VoffFigure 17, and

Figures 19,7'2'0fand 21 are sectionalfviewsg drawings, upon a'suitable framestructure 'illustrating'*several forms of the 'resilientlvr i. I i

' wfriction bands, vwherebyv'the clamping rings 5 Vare securely held inY sup'erposedfrelation to each other.

Y Y Thepresent invention,rk like the machine. S Y disclosed in Ymy lprior. patent provides a Y series offduplicateV` mechanisms which. `are f simu ltaiieously Voperated from a common' source of `power to apply a continuous cir-Y cumferential layer orf'cordsoupon the periphery of atire forming' core. `Any desired angle of 90 number of these duplicate cordY applying Ymechanisms may be employed, butl have vfound thatfor certain practical reasons it is preferable to use a quadripa'rtite arrange- Y ment withv lthe mechanisms disposed at an These cord applying mechanisms are grouped /aroundan annular forming core -10 which.

isv Ysupported in concentric relationA toa central axial'standard -11 rigidly liXedat its lower end in a base 12 of any preferred construction.- The core 10 is preferably vhollow for the sake of lightness and is, ofcourse, of the usual sectional construction.- I have -devised animproved sectional core which liow-` h Y part of the presf.-V ent invention and is, therefore` embodied in ever constitutes no essential av separate application for patent filed of even' date herewith and issued `as HPatent No.

. 1,408,044 on Feb. 28,1922. For; the pui` .poses of the. lpresent eXplanation: it will,

' i suliice to' state that thejlcore 10 is; provided,Y

- inwardly of its.annular cylindrical portion andatits opposite sides, with the continuous annular cord end Y seating., Vflanges 13.

.The .several'sections of the'coreare'held in assembledrelation,with their flanges 13, in Y alignment by 'means of the `annular key 14'y which 'is seatedV in alignment channels 15 provided inthe several sections of the core.

by each of the ment4 generally. indicatedat 26 is suit-abi with relation toeach other.-

axial standard' 11.

`In Figure 1 of the drawings I have shown twoof thecord applying mechanisms horizontally arranged in radial relation. to then Y l n lstandard 11, which'represcnt one-half of thel showing afl plurality of cord' layers having;`

complete machine. It will bc understood kthat'the remaining portion of the machine also consists of. two of the cord applying H v s n l Vure 1. As the construction of all of the n v2G ing the resilient friction band in thejperiph- *Y 19 secured to thei baseV 1.2 spaced`r parallel beanis'2h0 are mounted, each ofsaid beamsy l being"providednatits ends with a suitable` bearing 21 which receives one of the slide rods 22. Tothe inner eiidsnof the rods 22 VtheV integrally .connected longitudinally 4extendingarnis 23 a-rerigidly secured. cach of said .arms terminating in a bearing 24e. which receives. a Vrock. shaft 25. Upon this rock shaft the cordreceiving and applying scg .v fixed.'` With the body of this segment 2G and at the center thereof, anarin 27 is integrally formed at one of its ends and upon the other end of said-arm a counter4 balancing weight 28 is mounted. i This weight serves to iiormally vret-ain the segment 2G in horizontal position, as-seeii in. Figure 2.

The cord receivingand applying segment is of arcuate o r curvilinear forni, its longi` tudinal edges and its peripheral surface being concentric to the radius of curvature of.. the Ytire forming core 10. The cnd edgcsof thev segment 26 are obliquely cut and extend inparallel .relation to each other inv lines other than The' lower side of each of the slide rods 22 is flattened and provided with a rack 27 with which the gear segincnts28 respectivelyv engage. These spaced gear segments are iXedup'on a common shaft 29' mounted in VbeariiigsSO secured uponthe' rods 31 Q fined in thezfranie structure 20. Rotation is imparted to theirshaft 29 yfrom a primary source of power through the medium vof a suitablejgearing 32', the driven shaft 33 bef .ing flexiblyconnected ,to .one end of the shaft 29 by the shaft section 34 having a universal connection'to the shafts 29 and 33, Similar flfeiiziblepower trai'ismitting elements 35 operatively connect the shafts 29 llt) ' positions.

of the two adjacent cord applying mechanisms on one side of the machine and the corresponding shafts of the other mecha@ nisms located at the opposite side of the machine are in a similar manner connected to the other end of the shaft 33. vThis shaft is intermittently actuated through the medium of the gearing 32 so as torotate 4the shafts 29 at the proper times and in the proper directions 'to move the segmental cord holdersV in unison from the position seen in Figure 2 to the position shown in Figure 4 and to then retract the same to their former rigidly iixedvupon rods 4 5 connectingthe' beams 2O to each other.` A gear segment 46 is fixed uponthe shaft 43 and meshes with a similar gear 'segment 47 on the shaft 48, said latter shaft being jo'urna'led at its ends in suitable bearings 49. One end of this shaft is operatively connected by the shaft section 5() tot-he driven shaft 52 of a second operatingA gearing 51 vactuated from the primary source of power. The other end of the shaft 48 is connected by the flexibley power transmission means 53 to the corresponding shaft of :an adjacent cord ap# plying mechanism. The 'mechanisms at the opposite side of the machine have their shafts 4S also connected to the operating gearing in the same manner as just described.

It will be evident from the above descriptionv that upon the rotationof the shaft 43, through the lmedium of thef segmental gears 46 and 47, the shaft 43 is likewise rotated and through the gea-rs 36, 37, 41 and 42 the shaft 25 is rocked to swing thercord applying segment 26 from a horizontal to a vertical position, as shown in Figure 3, or vice versa.

Each of the cord receiving and applying segments 26 consist-s of a concavo-convex shell having' a longitudinally continuous in termediate portion of substantially semicircular form in cross section and longitudinal edge portions indicated at 53 extending from said intermediate portionin parallel relation toeach other. Within each of these segments 26a multiplicity of thin flexible sheet metal fins or plates 54 are arranged in spaced relation to each other,

said plates being obliduely inclined with Arespect to the longitudinal axis Vof the seg- L ,mentand likewise inclined transversely thereof, as shown in Figure 13 of the draw ings. ployed for securing these metal plates within the cord applying segment, but for this purpose I have herein shown each of said plates provided with openings 55 which in the present instance are loca-ted at opposite sides of the intermediate curved portion of the plate. Throughithe aligned openings of the series of plates 54 wires 56 are threaded and Babbitt metal or other suitable binding material indicated at 57 is poured between said plates andv around the wires 56. The thickness of the Babbitt metal 57 is less than the width ofthe fins or plates 54 so as to provide the free edge portions of the plates capable of flexing movement with respect to each other and designed to receiveV between them the indivi-dual cords' "Ca These cords are assembled upon a cord4 receiving piston 58, each of the cords being coated with an adhesive rubber composition solution.4 lt will be understood that the cords are arranged at the proper predetermined angle so that when the piston 58 is actuated and moved upwardly from the position sho-wn in Figure 3, the cords thereon are forced between the free edges of the plates or fins 54. Thus when the piston 58 is withdrawn or lowered the series of cords will be properly heldin the segment 26 inthe same angular positions which they formerly occupied upon the piston. However, in so far as the present application is concerned, any other desired means may be employed for positioning the cords in the segment 26. A

Y Upon reference to Figure 4 of the draw ings, it will be observed that the cords C are of such length that when applied to the core 10 they will extend inwardly from theVY cylindrical body of the core andthe end portions thereof, which project beyond the parallel portions 53 of the segment 26, will be disposed over the edgesof the anges 13 of the core. In order that the cords may be tightly held under tension upon the forming core, I have provided means for securely clamping the cord ends in position on the flanges 13.A This clamping. means I have fully illustrated in Figures 7, 8 and 9 of the drawings. The upper head 58 in the form of a spider is keyed for longitudinal movement upon the fixed standard 11 as shown at A59. The spaced marginal portions of this head are each provided with a groove 60 to receive latch tongues 61 on a ring or vannulus 62. ToV the inner side of this ring or annulus, at diametricallyxopposite points, levers 63 are pivoted as at 64, each of said levers having a lower end portion 65 disposed at a slight angle with respect to the lever portion extending above the pivot 64. The end portion 65 of each lever` terminates in an outwardly turned Any preferred means may be em-A lif'tingfhook '66, 4the purpose otwhich; will` befhereinafter more: fully-explained; The* lovverface'T of: thenring (S2-*is i rabb'eted Aas at.

67 for t'liepurposel of' receiving the ciampi The.' lower clamping` head: 69 isvalsofkeyed ment of the rod 88;

uponthe#standard 11 and :is likeu'risey of skel-`- etonized' construction.` `rllhisfhea'dy has'a con! upwardly*throughofpeniii'gsf'in the wall ot "the headg69'`V 1 j Upon theftablef 181 spaced bearing castings f 7-2f-are` mounted'in fiixedfrelati'on; to each otherl as shown iniFigiire lsof'the drawings,`VA said castingsext'ending above and below the planeV ofv the'table-ai'id'-*havingv spaced. bear-T rings.' at; their opposite ends to 'receiver the: shaftsf73randv721 respectively.: Upon the; shafts' 7Bf4 aiidadjacent ea'cli'end thereof, an eccentrie--75fisiiXed- 'These eccentrics oper- TV rate within spacedfyokes"'depending rom the'fbody wallof theheadrS. It willbe ob-A b served th'attwoofthe ecoentrios are engaged diameter,'jwhich are nXed upon the lower shafts 7 4', thegears 8O likewise meshing with Y. :sofP

in 'each otheeyokesythe eccentricsineach pair'being located. atf'relatively opposite sides of the vertical;centralline ofthe'machine -sozasto'impart'a uniform thrust to the 'head' andr bviate lateral bindingfthereof against thei standard11. This insures the' 1 fieeland unretarded movement of' the head., lUpon each of the lower shafts-7.4, spaced eee-entries `77 are Valso lsecured .and operate-iu the spaced yokesV 78y extendingjupwardlyV fromi'thev bodyV wall of the lower clamping head69; lIn this case also the corresponding: eccentrics-77 on theshat 74 co-operate` "Referringnowf tov Figure 8 of the' draw-V ings, itA will be noted tha'taV gear 79 `is iiXe'd to each ofthe upper shafts 73, said gears mesh-l Y ,ing with each: other and also having meshingengagement With the gearsSO of the same eachother.' In addition to the gears 80, a pinion 81 -is tixed'upon on'eiorn the shaftsv 74 and is operatively 'engaged' by gear segmentv arm'of a breil-crank lever 86 fulcrumed as 'at' 87 Vupon'rthe face 12: To the other ajrm vof the' bellA crank Ylever 86 a reciprocable actuat# ing rod"J 881'is connected, Yay turnvbuckle or other suitable fi adjusting means 8 9" being ini Y V655 terposed in' the' length of thisrodr Bythe adjustment. of` the' turni buckleC 89, the" eccentries 75 and v77^may be readily adjusted as indicated inv Figure 10 ofi the drawings so'as to regulate thethrow oty the eccentrios .or the extent ofxmovement transmitted thereby to the heads58 and 69 in the actuating move` ated-through any suitable mechanical means by the operating gearing, such for instance as that disclosedV inl my issued patent, the

heads S and 69are simultaneously moved towardsqorfaway from each other upon the standard 1`1 vwhereby the clamping rings 68 will be positioned in tight clamping engagenient against' the cord endsand securely hold the'same upon-the langes 13 of the for-ming core;V n l Forthe purpose ofr insuring the proper positioning of the cord ends in opposed relation-to the. seat-ing vfaces Vof the'flangesl 13, I* l provided Vthefunderside of each cord applying "segment 26-with a rib 9() which is adapt-- edto'rideoverandfupon a roller 91 mounted in the upper endof an arln 92` which is tiXedin any suitable manner to the"` machine ase. Y Asshown in Figure 14 of the drawings, the angular supports 17 'of the table upon' which the core is removably supported are spaced apart for a distance of preferably 120"V and in addition the table is also provided wit'h the slots 93 and 94, the slot 93 accommodating one pair of eccentrics and one pair of eccentrics 77, while the other slot 94. accommodates the other pairs of eccentr-ics andthe gears 7 9 and 80; The table is Vof general rectangular form and the lower end portions-,65 'of the levers `63'are disposed between the-radially projecting core supports 17.A

The carrying ring (i2 and the tire forming core with the clamping rings holding the ap-' plied layer of cords thereon are removed from themachineand transferred to aseco'nd machine of like character where another layer offcords is applied in superposed relaw tion tothe iirst layer, but extending at right angles to* the latter. This transferring means in one of itsembodiments is shown in? Figure 2 of the drawings. A suitable hoisting mechanism isconnected to the rod- 93and upon-this-'rod at'ubular'head 94v is iiXed, saidheadhaving the arms 95-extending laterally rouropposite sides thereof and each provided with an arcuate slot 96 therein.- rIlheupper'end of. each of the levers 63 carriers roller GSmovable in one of the slots 96. -A` longitudinally movable sleeve 97 is engaged upon the lower end of: the rod 93 and'extendsfupwardly in the head 94 and iskeyedthereto,` asat'98, so as to prevent relative rotation. The lower end? of the sleeve 97 is 'connectedat' itsop'posite sides by t-helinks 99 tothe respective levers163, the1 pivotal connections- 100 between ysaid links' lVhen this rod is actuloo and levers being located in spaced relation to the roller 63. The sleeve 97 is actuated by means of a lever 101 fulcrumed intermediate of its ends upon the head 94 and connected by links 102 to the lower end of said sleeve. Y

During the operation of the head 58 and 69 to apply the clamping rings to the ends of the cord layer, the levers 63 are in the dotted line positions shown in Figures 2 and 9, the carrier 62 being latched to the head 58. In the vertical movement of said head it will be understood that the lever 63, the head 94 and the sleeve 97 all move together as a unit. After the head 58 is returned to the position seen in Figure 9, the carrier 62 is circumferentially moved upon said head by the application of a lateral pressure against the rods 103 connected to the upper end of the head 94 in relatively opposite directions. The latch tongues 61 on the carrier 62 will thus be moved out of engagement with the grooves 60 of the head 58. The lever' 101 is now moved from the dotted line position to the full line position seen in Figure 2, thereby forcing the sleeve 97 downwardly on the rod 93 and through the medium of the links 99 pulling the upper ends of the levers 63 inwardly, The lower end portions 65 of these levers are thus moved outwardly and the hooks 66 thereon are engaged beneath the 'fiange 16 on the tire forming core. `When the hoisting mechanism is now operated, it will be obvious that the carrier 62, together with the forming core having the layer of A cords thereon, will be lifted above the head 58 and the upper end of the standard 11. The hoisting mechanism is carried by a 'suitable traveling crane so that the core may be transferred to another location and properly positioned with relation to a second machine for applying the next layer of cords.

The carrier 62 may be provided with spring pressed latch pins 104, as shown in Figure 7, to engage the inner edge of the annular'clamping ring, which is disposed in the lower rabbeted face of the carrier. It will be understood that. these clamping rings are very light in weight and the latch pins 104 are provided only for the purpose Vof compensating for such wear as may occur and thus assuring the retention of the clamping ring upon the lower face of lthe carrier.

In Figure 15 of the dra-wings, I have illustrated a plurality of the` clampingV rings 68 as applied after a' plurality of layers of cords have been disposed in superposed relation upon the tire forming core. Each of these clamping rings is provided intermediate of its inner and outer edges with an angular continuous annular shoulder 105 so that the inner and outer ledge portions of the ring are located indifferent horizontal planes. The contacting faces of the" shoulders 105 on the superposed rings are slightly beveled or inclined so as to produce a frictional wedging action whereby relative displacement of said rings and the release of the cord layers as the result of such displacement is precluded. The outer edge portions of certain of the clamping rings also preferably have their cord engaging surfaces beveled or inclined as at 106, so as to more effectively clamp the cords in place and maintain the same under the requisite tension. In Figure 16 I have shown the inner portion of the clamping ring circumferentially recessed or cut away at spaced points as at 107, which spaces accommodate the lower end portions 65 of the levers 63 and permit of their circumferential movement. with respect to the clamping rings. The clamping ring is provided with the additional cut out or recesses 108 in its inner edge. Then the lower ends of the levers 63 are engaged beneath the flange 13 on the core as above explained, and said core, together with the ring carrier 62 rotated with respect to the head 58, so as to release the carrier from said head, the angular core supports 17 of the table will be in alignment with the recesses 107 and 108 of the clamping rings so that the core with the cord holding rings may be lifted and transferred to the next machine in the series without encountering parts of the table 18.

ln order to securely hold the several superposed clamping rings 68 in engagement upon the ends of the cord layers as shown in Figure 15 and to prevent their relative movement, the outer face of the annular shoulder 105 of each ring is provided with a circumferential groove 109 and with this groove an elongated opening or slot 110 formed in the ring body communicates. It will be noted from reference to Figure 17 of the drawings that the width of this slot is appreciably greater than the diameter of the groove. Within the groove 109 a resilient friction band 111 is disposed, In one embodiment, this band is in the form of a cylindrical steel wire of requisite gauge having a normal diameter greater than the external diameter of the shoulder 105 of the ring so that the friction band 111 at its outer side projects beyond the peripheral face of this shoulder, as seen in Figure 19. The ends of the band 111 arev angularly bent as at 112 and are engaged within the slot 110, the ends of said band being normally seated against the opposite end walls of the slot 110. In this normal position of the band, it is spaced from thebase wall of the groove 109 so as to permit of the circumferential contraction of said band when two rings are nested in superposed relation as in Figure 15. The outer side of the band 111 engaging the inner face of the shoulder 105 on onerring causes the contraction of said ring and thereby increases the frictional pressure of Vthe band 111 'against the Shoulder 105,

' the ends 112 of the band moving freely in 'Y fbody. Upon reference toFigu're 11 it will .be observed thatwhen the cord holding seg- '113g ofsaid band is flat.

the slot 110.` In this manner, it will be apparent that'V the superposed rings are practically locked'v against relative moment and securely retained in clamping engagements Y upon the ends of the respective cord layers.

InY Figure 'I have shown a slightly different form ofV the friction band 111, wherein'said band has aconveX inner face opposed to the semi-cylindrical groove 109 in the clamping ring while the outer face Preferably, this flat surface is vertically inclined so as to produce a slight wedging action against the Vface of the ring shoulder 105.`

In AFigure 21Y I have shown another form of the friction band and Ain this vcase the band 111 is of approximately rectangular cross sectional for-m, the vfiat inner face 114 Ythereof being opposed to the base wall of theY rectangular groove 115 inthe kface of the shoulder 105. rlhe outer peripheral face 113 of the friction band is vertically inclined as in the constructionA shown in F igure'20. VAny one of these several forms of the friction band for the clamping rings will.V efficiently s'ubser've the intendedA purn pose. It'will, however, be apparent that it is possible to modify the form, construction and arrangement Iof this feature lof the invention in'many other respects.

In the Voperation'of the machine as above described, after the individual cords of the proper length have been disposed upon each 25 byV means of the counter VbalancingV weightsf28. Through the medium of the operating gearing 51, thesegmental cord holders 26 are now simultaneously projected inwardly radially of the core center, the segments being guided in their horizontal movement by the rollers 91 Vto the position seen ily-Figure 4 of the drawings,` wherein eachsegment will closely embrace`V the core ments are' moved intp VembracingA 'relation to the core, the obliquely inclined end edges of adjacent segments 26 extend in parallel relation and are in substantial contact with each other. In other words, the several segments 26 entirely cover the peripheral surface of the core and there are no gaps or spaces between these segments. Thus, the cord-s C carried by the several segments are simultaneously applied upon the entire surface area of the core in the form of a single layer of cords positioned uniformly in spaced relation to each other and in the same angular relation to the axis of the core.

As shown in Figure 4 of the drawings, the ends of the cords carried by each segment 26 extend beyond the longitudinal edges of the segment so that they project over the flanges 13 on the core 10. The carrier 62 on the head 58 and the head 69 having been proA vided with the clamping rings 68, the ec centrics and 77 are now actuated by movement of the rod 88 to simultaneously move said heads in rela-tively opposite directions upon the standard 11 from the po sitions shown in Figure 7 to the positions seen in Figure 8, wherein it will be observed that the outer portions of the clamping rings have been broughtinto clamping en` gagement with the cord ends, said rings tightly clamping or compressing` the ends of the cords against the seating faces of the flanges 13 and the shoulders 105 of the rings frictionally fitting against the inner side faces of said flanges. The layer of cords is thus held under proper tension upon the peripheral surface of the core body and prevented from loosening or in any way changing their positions relative to the core axis.

The heads 58 and 69 are now returned to' their former positions as shown in Figure 9. The levers 63 are then moved to the full line'positions shown 1n Figure 9 and the Vhooks 6G engaged beneath the flange 16 of the core. The ring 62 having been circumferentially shifted to runlatch the same from the head '58 the hoisting mechanism is operated to lift the core with the cord layer clamped thereon from the machine.. The core is now transferred to a similar machine and lowered into position upon the table 18 thereof. This machine differs from that herein described only in the fact that the plates or fins 54 of the cord holding segments are arranged at a reverse angle so that the next 'layer of cords which are applied in superposed relation to the previous cord layer will extend over the forming core at right angles to the angular direction of the first cord layer. Additional clamping rings 68hold the successive cord layers in place inV proper superposed relation to each other, as indicated in Figure 15, until the requisite number of cord layers have been applied. Finally the core with. the plurality of cord layers assemb-led thereon is transferred to the end machine of the series where bead rings are applied to the marginal portions of the cord laminations by forcing said marginal portions and the bead rings into the grooves or channels 116 of the core body,`somewhat in the manner disclosed in my prior patent, above referred to. However, this means for applying the beads does not constitute an essential part of the present invention.

From the foregoing description, considered in connection with the accompanying drawings, it will be appreciated that I have materially simplified the construction of the machine as disclosed in my prior patent, enabling the operation thereof with maXimum rapidity so as to materially increase quantity production of tires of this cha-racter.

It will, of course, be understood that the cord delivering pistons, the cordholding segments and the clamping heads are operated in properly timed relation to each other. Various motion transmission mechanisms might be utilized for this purpose, such for instance as that disclosed in my former patent and, therefore, I have not herein referred to such prima-ry operating means in detail. It may however, be stated that in a co-pending-application for patent filed September 27, 1921, Ser. No. 503,677 I have fully described an improved operating mechanism which may be advantageously employed in connection with the machine forming the subject matter of the present application, as well as in connection with the various otherfmachines which may operate to securer different final results.

In the foregoing have described what I believe to be a very practical and serviceable embodiment of the present invention, but it will be manifest that the several cooperating parts of the machine are susceptible of numerous mechanical modifications and thatI the same general results might be obtained by means of `other alternative structures. Accordingly, the privilege is reserved of resorting to all such legitimate changes in the form, proportion and relative arrangement of the several parts as may be fairly embodied within the spirit and scope of the invention as claimed.

I claim:

1. In a cord tire building machine, in combination with a tire forming core, a cord holder mounted for bodily swinging movement, and means for swinging said holder from a cord receiving lposition in angular relation to the core to a position in radial alignment therewith.

2. In a cord tire building machine, in combination with a tire forming core, a cord holder mounted for bodily swinging movement upon an axis coinciding with the media-n plane of said core, and means for swinging said holder from a cord receiving position in angular relation to the core to a position in radial alignment therewith.

3. In a cord tire building machine, in combination with a tire forming core, a cord holder mounted for bodily swinging movement upon an axis coinciding with the median plane of said core, means for swinging said holder from a cord receiving position in angular relation to the core to a position in radial alignment therewith, and additional means for rectilinearly moving the cord holder when in the latter position to apply the ycord held thereby to the peripheral surface of the tire forming core.

Il. In a cord tire building machine, in combination with a tire forming core, a cord holder, a rectilinearly movable support upon which said cord holder is `mounted for bodily swinging movement, means for swinging the cord holder from a cord receiving position in angular relation to the tire forming core to a position in radial alignment therewith, and additional means for rectilinearly moving the support to advance the cord holder and position the cords carried thereby upon the forming core and to subsequently retract said holder.

In a cord tire building machine, in

`combination with a ftire forming core, means for applying a layer of cords upon the entire circumferential area of the core, said means comprising a series of cord holders, each supported for rectilinear movement and for :bodily swinging movement, and means associated with each of the holders to operate said holders in unison and swing the same from their cord receiving positions in angular relation to the forming core to positions in radial alignment therewith, `and to then simultaneously advance said cord holders to position the cords carried thereby upon the tire forming core.

6. In a cord tire building machine, in combination with a tire forming core, means for applying a layer of cords upon the entire circumferential area of said core comprising a plurality of curvilinear cord holders, each mounted for rectilinear and bodily swinging movement, said holders each consisting` of a single part having a cross sectional form conforming to the body of the tire -forming core and a mechanism associated with each of said cord holders to operate the same in unison and swing said holdersV from cord receiving positions in angular relation to the core to positions in radial alignment therewith, and to then simultaneously advance the holdersrinto embracing relation to the core to position the cords in the respective holders upon the core surface.

7. In aV cord tire building machine, in combination with a tire forming core, a cord holder mounted for rectilinear and bodily Y holderto a cordl receivingposition inran-V swingingmovement,means for swinging the gular'relation Ito the corre, counter balanc-Y 'ingsmeans connected to theholder to return 'Y a tire forming core, said segment compris- :ing curvilinear.body.adapted to embrace :the outerside of the core and a plurality of spaced flexible metal fins Within said holder between Which the individual cords'are received and releasably confined.

` 9. In Va corditirebuilding machine, a `cord. holderV forV positioning the vcords vupon a tire forming core consist-ing ofaurigid onee'piece curvilinearxpart corresponding toa circumferential section of the Vcore and conform- "ing'in cross sectional contour therewithiand 'adapted to-embrace .the core body at each `side ofzits .tread portion, and meanscari-ied yby saidV holderiifor rreleasably Yretaining .a

multiplicity.ot'cordsftherein in predetermined angular relation `to the axis of the tire forming core.

10.V In a cord tire buildingniachine, a ciordV Y holder .for positioning .the vcords upona tire `forming core consisting of singlev curvilin- Vear part correspondingto a circumferential section of the core .and conforming in cross sectionalcontour therewith yandadapted to embrace the .core body, and a plurality ot spaced relatively yieldable .ele-ments secured Within the core holder between which the individualgcords :are :releasably confined Aand heldin vpredetermined angular relation `with respect togtheaxis of the .tire Ormingcore. 11.5n'a cord ftire building machine,

' means Vfor clamping a layerof Acoidsnpon a -tiieforming core, including ahead axially movable .Y Vwith relation to the core, cord clamping means 'carried' by said head, eccjeiitrics coacting ivith the head to move the rsame alternately in opposite directions, and

fmeansifo'r actuating said eccentrics.

' 12. In a cord tire building machine, vmeans for clampingv a layer of cords upon a tireforming core, including ahead axially movable With relation: to the/core, clamping means 4carried by the head,eccentrics arranged iirpairs at opposite sides at the axial center of the head and .coacting With fsaid head to move .the same, and meansfor actuating saideccentrics 13a-In a cord 'tireA building machine,

means for clamping'alayer of cords'upon a vtirefforming.core, including a head axially movable Withrelation to the core', clamping meansv :carried by f the head, :eccentrics ar- Y rangedin pairsV at oppositeV sides at YVthe axialffcenter-of the head Vand coacting with said head to move the same, means for actuating saideccentrics, said actuating means includingadjustable means for regulating the throiviof the eccentrics.

14. In :a cord tii'e building machine, meanst'or clai'nping a layer of cords upon a tire forming core including a head axially movable With relation to the core and provided `With spaced yoles arranged upon opposite sides of the axis of said head, a pair of eccentrics operating within each ot said yokes, and means for actuating said eccentrics to move the head alternately in opposite directions.

15. In a cord tire building machine, means for clamping the ends of a layer of cords upon opposite sides of a tire forming core including opposed axially movable heads arranged at relatively opposite sides of the core, cord end clamping means carried by each head, eccentrics coacting with the respective heads to simultaneously move the same in relatively opposite directions and means for actuating said .eccentrica 16. In combination with a tire forming core having cord end seating flanges, means for clamping the ends of a cord layer em bracing the core upon said flanges including heads axially movable towards and -from the opposite sides of the coie, an annular cord end clamping member carried by eachof the vheads and having means to frictionally coact with the core flange to retain said member in clamping engagement With the'cord ends When the head is retracted, and means for axially reciprocatingsaid heads in unison `to simultaneously clamp-the ends of the cord layer upon said flanges. Y

17. In a cord tire building machine, means for clamping one end of a cord layer upon a tireforming core, including a head axially movable with respect to the core, a cord clamping member, a carrier for said member-detachably connected to said head, means connected to the carrier for attaching the same to said head and dctacbing said carrier therefrom, and means for reciprocating said'head to clampingly engage saidmembei with the end of the cord layer.

18.111 combination with a tire forming core, means'tor clamping one end of a cord layer upon said core including a head axially movable with respect to the core, a clampingring `for engagement with the end of the cord layer, an annular carrier for said clamping ring, said head and the carrier having co-acting means whereby the carrier may be attached to the head or detached therefrom by a. relative circumfer ential movement, means `for axially shiftingl the head to engage :the clamping ring Vupon the end of the'cord layer, and means connected to said annular carrier to circumterentially shift the same relative to the head, said means having parts engaging the'core when the carrier has been detached from the head whereby said carrier, together with the core, may be removed from the machine.

19. In combination with a tire forming core, means for clamping one end of a cord layer upon said core including a head axially movable with respect to the core, a clamping ring for engagement Vwith the end of the cord layer, an annular carrier for saidclamping ring, said head and the carrier having coacting means whereby the carrier may be attached to the head or detached therefrom by a relative circumferential movement, means for axially' shifting the head to engage the clamping ring upon the end of the cord layer, a plurality of levers pivotally connected to the annular carrier and whereby said carrier may be circumferentially shifted to attach the saine to the head or detach said carrier therefrom, said levers terminating at one of their ends in lifting hooks, and means for pivotally moving said levers upon the carrier when the latter is disconnected from the head to engage said hooks with the tire forming core, whereby the carrier, together with the core, may be removed from the machine.

20. In a machine for building cord tires, in combination with a tire forming core an annular member for clamping engagement upon one end of a cord layer to retain the same in applied position upon the core body, a carrier for said clamping member, means for reciprocating the carrier axially with respect to the core for the application of the clamping member to the end of the cord layer, and means connected toV said carrier and adapted to be engaged with the core whereby said carrier, together with the core, may be removed from the machine.

2l. In a machine for building cord tires, in combination with a tire forming core, an annular member for clamping an engagement upon one end of a cord layer to retain the same in applied position upon the cord body, a carrier for said clamping member, means for reciprocating the carrier axially with respect to the core for the application of the clamping member to the end of the cord layer, diametrically opposed levers pivotally connected to the carrier and terminating at one of their ends in lifting hooks, and means for pivotally movingsaid levers with respect to the annular carrier to engage the hooks with said core whereby said carrier, together with the core, may be removed from the machine.

2Q. In a cord tire building machine, in combination with a tire forming core, a clamping ring adapted to be engaged with the end of a cord layer applied upon said core, an annular carrier for the clamping ring, means for reciprocating the carrier axially with respect to the core, including spaced parts having means with which parts on the carrier coact to support the annular carrier in operative relation to the core, and means for detaching the annular carrier from said spaced parts including a plurality of levers pivotally mounted upon the carrier, and means for pivotally moving the levers upon the carrier to engage the same with the tire forming core when the carrier is detached from said spaced parts whereby said carrier, together with core, may be removed from the machine.

23. Means for clamping a series of superposed cord layers upon a tire forming core comprising a plurality of annular clamping members, each having means frictionally coacting with the corresponding means of an adjacent clamping member to retain said members in superposed relation and against relative movement in clamping engagement upon the individual cord layers.

Q4. Means for clamping a plurality of superposed cord layers and holding the same under tension upon a core body comprising, in combination with a tire forming core, a plurality of annular clamping members adapted for arrangement in superposed relation upon each side of the core with the marginal edges of the cord layers disposed between the adjacent clamping members, the inner cord layer having its edges disposed between the innermost clamping member in each series and parts of the tire forming core, said clamping members have circumferentially continuous angular shoulders to frictionally engage each other, and the shoulders of the inner clamping members frictionally coacting with the forming core whereby the superposed? clamping members are retained in assembled relation in clamping engagement with the respective cord layers and against displacement relative to the tire forming core.

25. In the manufacture of cord tires, a clamping ring for engagement upon the marginal edge of a circumferentially continuous cord layer to retain the same in position upon a tire forming core, said ring having an angular circumferentially continuous shoulder intermediate of its inner and outer edges having a groove in its outer peripheral face, and a resilient friction band normally projecting beyond the face of said shoulder and expansible and contractible in the groove thereof, said band adapted for frictional engagement with the inner face of a similar shoulder on a second clamping ring when the rings are arranged in nested superposed relation.

26. In the manufacture of cord tires, a clamping ring for engagement upon the marginal edge of a circumferentially continuous cord layer to retain the same in position upon a tire forming. core, said ring having an angular ci-rcumferentially continuous shoulder intermediate of its inner and outerv edges havingl a groove in its outer peripheral face, and a resilient friction band normally projecting beyond the face of saidshoulder and expansible and contractible in the groove thereof, said band adaptedl for frictional engagement with the inner faceof a similar shoulder on a second clamping ring When the rings are arranged in nested super-osedfrelation, the clamping ring being furtl er provided with a circumferentially elongated opening and the ends of the friction band being angularly disposed and engaged in. said. opening for free relative movement in the expansion and contraction of said band.

27. In a cord tire building machine, in combination With a tire formi-ng core, a cord holder mounted for movement from a cord receiving position into the plane of the core, means for moving the cord holder from one position to the other, and additional means for moving said holder when positioned in the plane of the core to apply the cord held thereby to the peripheral snrface of the core.

28. In a cord .tire building machine, a Cord holder for positioning the cords upon n. tire forming core, said holder consisting of a channel shaped member adapted to ree ceive the tire forming core and having means on its inner face for releasably Confining a plurality of spaced cords in definite angular relation to the longitudinal axis of said holder.

In testimony that I claim the foregoing as my invention, I have signed my name hereunder.

KNUT O. B. TEXTORIUS. 

